@misc{indiciae60ab68764377,
  title = {A teaching phantom for sonographers.},
  author = {J A Zagzebski and E L Madsen and G R Frank},
  year = {1991},
  doi = {10.1002/jcu.1870190107},
  url = {https://pubmed.ncbi.nlm.nih.gov/1846376/},
  note = {Source identifier: 1846376}
}